Isambard is a given name. It is Norman, of Germanic origin, meaning either "iron-bright" or "iron-axe". The first element comes from isarn meaning iron. The second element comes from either biart-r or from barđa. It was used by:Marc Isambard Brunel (1769–1849), French-born engineer Isambard Kingdom Brunel (1806–1859), British engineer, son of Marc Isambard Brunel Isambard Brunel Junior (1837–1902), son of Isambard Kingdom Brunel Sir Isambard Owen (1850–1927), British physician and university academic, son of an employee of Isambard Kingdom Brunel
